Today I have another relative in hospital. He went in for something unrelated and was diagnosed with covid-19. The only symptom he experienced was confusion / delirium. Thing is he is now unable to return home because he is displaying symptoms of advanced dementia. Sure he is 85 and may (but also may not) have had early signs but a month later he has completely lost touch with reality. This is widely reported as a common symptom in the elderly but nobody is able to answer the question about whether this is likely to be permanent or not (covid is now gone and there is no infection and no meds) and we have no idea if he will ever be able to return home or lead a normal life.
I for one will continue to take whatever precautions I can.
It will be permanent. The virus causes little blood clots throughout the body and these can cause blockages in the brain and other organs. When that happens parts of the brain or organ die and it doesn't get repaired.
Taking low dose aspirin (100mg) per day helps prevent blood clots forming in heart patients and would also help with covid 19 patients. However, patients would have to take the aspirin as soon as they were diagnosed and continue taking it daily for a month. For people who have already had the virus and no longer have the infection, aspirin won't help unless they suffered heart damage. Then they need to talk to a cardiologist and get an ECG stress test with ultrasound, then see if they need to be on aspirin and or blood pressure medication.
If your daughter is still having problems now, she should see her doctor and a cardiologist and get her heart checked. She might also need to see a lung specialist.
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There has been some research into dementia and dancing, music and things to stimulate the mind help reduce the progression of the disease. And regular daily exercise also helps. If you can get the person to walk, do weights or use an exercise bike for at least 30 minutes (preferably an hour or more) each day, then it can help. And get them to play cards, do word puzzles, etc while listening to music, and that can help.
Everyone needs to get at least one hour exercise every day, and preferably more. This is very important for older people because the exercise helps maintain muscle mass and bone density, and this helps reduce the chance of falling and reduces the injuries sustained if they fall. The exercise also helps medications work more effectively and reduces side effects from medications.
There was also something about diet and lots of red meat apparently speeds up the progression of dementia. Lots of plant matter, fish and chicken is meant to help reduce the speed that it progresses but they aren't sure how much it helps.